11 lines
566 B
Text
11 lines
566 B
Text
Consistent hashing is a scheme that provides hash table functionality
|
|
in a way that the addition or removal of one slot does not
|
|
significantly change the mapping of keys to slots. In contrast, in
|
|
most traditional hash tables, a change in the number of array slots
|
|
causes nearly all keys to be remapped.
|
|
|
|
Consistent hashing was introduced in 1997 as a way of distributing
|
|
requests among a changing population of web servers. More recently, it
|
|
and similar techniques have been employed in distributed hash tables.
|
|
|
|
WWW: http://search.cpan.org/dist/Set-ConsistentHash/
|